You can remove cards and passes that you don’t use anymore from Apple Wallet. You can also remove debit and credit cards from Apple Pay if your iPad is lost or stolen.
Go to Settings Apple Account. Click Devices, then select the lost device. In the Wallet & Apple Pay section, click Remove Items.
Call the issuers of your cards.
If you remove cards, you can add them again later.
If you sign out of iCloud in Settings > [your name], all your credit and debit cards for Apple Pay are removed from iPad. You can add the cards again the next time you sign in.